Synonyms|44Antonyms|3|Broader|3Narrower|0Related|97

8 entries under oldness topic. ×

9
eldest(adjective, age)
3
elder(adjective, age)
1
ancient
1
antique
0
of long standing(expression, idiom)
0
old
0
time-honored
0
venerable
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APASmart Define. (2015). firstborn thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/firstborn/thesaurus/synonyms
ChicagoSmart Define. 2015. "firstborn thesaurus" https://smartdefine.org/firstborn/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2015, firstborn thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/firstborn/thesaurus/synonyms>.
MLASmart Define. "firstborn thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/firstborn/thesaurus/synonyms>